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Finding the Fourth Proportional to 56,665.67, 84,834.26 and 42,684.56

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Solution

The fourth proportional to 56,665.67, 84,834.26 and 42,684.56 is: 63,903.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,665.67 : 84,834.26 = 42,684.56 : x
  2. Step 2: Convert to fraction form
    56,665.67/84,834.26 = 42,684.56/x
  3. Step 3: Cross multiply
    56,665.67x = 84,834.26 × 42,684.56
  4. Step 4: Simplify right side
    56,665.67x = 3,621,112,423.43
  5. Step 5: Solve for x
    x = 3,621,112,423.43/56,665.67
  6. Step 6: Final answer
    x = 63,903.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.